Add the core/template block to reusable blocks that only has a single block

[slimmilkduds]

Is your feature request related to a problem? Please describe.
When you create a reusable block that consists of multiple reusable blocks you get the added enormous benefit of being able to add (or remove) blocks when you edit them. If you create a reusable block from a single block you are forever stuck with just a single block.

Describe the solution you'd like
I want to be able to add more blocks when I edit a reusable block that only consists of one block.

Describe alternatives you've considered
This would kind of be dealt with if it was possible to edit reusable blocks like regulat cpts but even if that becomes possible that would mean a bunch of extra steps to do this.

[slimmilkduds]

Another approach could be to add a transform block option so you convert from a reusable block to a reusable template

[noisysocks]

Interesting idea. I guess my only fear is that it might complicate the basic use-case which is to take a single block and make it reusable.

This would kind of be dealt with if it was possible to edit reusable blocks like regulat cpts but even if that becomes possible that would mean a bunch of extra steps to do this.

This is possible as of Gutenberg 4.1, see #10751.

[slimmilkduds]

I agree that it might complicate the basic use case. An option to convert a reusable block to a reusable template however might get rid of that problem. Anyhow, as you note, 4.1 at least allows a work around for this.

[mapk]

It appears this is all possible now. I can edit a reusable block, add other blocks, and save it again. Closing this issue.